A laboratory set up that can be used to provide information about relationships between four plant species in the represented below.  This setup is part of the technique known as

A) electrophoresis
B) biological staining
C) dissection
D) chromatograph

The oxidizing agent our bodies use to obtain energy from food is oxygen (from the air). if you breathe 15 times a minute (at rest), taking in and exhaling 0.5 l of air with each breath, what volume of air do you breathe each day? air is 21% oxygen by volume. what volume of oxygen do you breathe each day?

Explain why the plants cortex would serve as the best food source for animals

The large increase in atmospheric carbon dioxide in the last 50 years most likely comes from a. an increase in cellular respiration b. increased decomposition by bacteria c. an increase in the burning of fossil fuels d. an increase in photosynthesis